102212416 has 14 divisors (see below), whose sum is σ = 202827890. Its totient is φ = 51106176.

The previous prime is 102212387. The next prime is 102212417. The reversal of 102212416 is 614212201.

It can be written as a sum of positive squares in only one way, i.e., 72182016 + 30030400 = 8496^2 + 5480^2 .

It is a junction number, because it is equal to n+sod(n) for n = 102212393 and 102212402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102212417) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 798471 + ... + 798598.

Almost surely, 2^102212416 is an apocalyptic number.

102212416 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

102212416 is a deficient number, since it is larger than the sum of its proper divisors (100615474).

102212416 is an equidigital number, since it uses as much as digits as its factorization.

102212416 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1597081 (or 1597071 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 19.

The square root of 102212416 is about 10110.0156280789. The cubic root of 102212416 is about 467.5569869621.

Adding to 102212416 its reverse (614212201), we get a palindrome (716424617).

The spelling of 102212416 in words is "one hundred two million, two hundred twelve thousand, four hundred sixteen".